| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Korbach in Waldeck | cnl00030480 | Germany | 8.87305555555556 | 51.2716666666667 | |
| Korfu | cnl00002535 | Greece | 19.75 | 39.6666666666667 | |
| Körner | cnl00041766 | — | 10.5997222222222 | 51.2330555555556 | |
| Kortgene | — | Netherlands | 3.8031359 | 51.5578335 | |
| Kortrijk (Courtrai) | cnl00033312 | Belgium | 3.27 | 50.8294444444444 | |
| Korzec / Korets | cnl00046478 | Ukraine | — | — | |
| Kostrzyn | cnl00017847 | Poland | 14.649722 | 52.587222 | |
| Kostrzyn nad Odrą | cnl00006174 | Poland | 14.65 | 52.5791666666667 | |
| Koszalin | cnl00010759 | Poland | 16.1797222222222 | 54.2 | |
| Kőszeg | cnl00016593 | Hungary | 16.5330555555556 | 47.3830555555556 | |
| Koudekerk | cnl00031697 | Netherlands | 4.601944 | 52.134722 | |
| Kraichtal-Gochsheim | cnl00043498 | Germany | 8.74638888888889 | 49.1033333333333 | |
| Kraków | cnl00016110 | Poland | 19.92 | 50.08 | |
| Kralingen | cnl00005443 | Netherlands | 40.5 | 51.9166666666667 | |
| Kranenburg | cnl00001917 | Germany | 6.0 | 51.7830555555556 | |
| Kreenheinstetten | cnl00040679 | Germany | 9.05277777777778 | 48.0572222222222 | |
| Krempe | cnl00035435 | — | 9.48805555555555 | 53.8366666666667 | |
| Kristianstad | cnl00000759 | Sweden | 14.15 | 56.0330555555556 | |
| Kronoberg | cnl00000247 | Sweden | 14.4333333333333 | 56.7833333333333 | |
| Krozingen | cnl00018589 | Germany | — | — | |
| Krummhörn-Eilsum | cnl00048461 | — | 7.14138888888889 | 53.4725 | |
| Kubaard | cnl00024015 | Netherlands | 5.570556 | 53.119444 | |
| Kufa | cnl00019718 | Iraq | 44.44 | 32.05 | |
| Kyburg | cnl00021295 | Switzerland | 8.7435 | 47.4585 | |
| Kyffhäuserland-Rottleben | cnl00047429 | Germany | 11.05 | 51.3666666666667 |